Glenn,So how did you cut the margin planks? I have the model to build in yellow cedar
The first order of business was to find the outer shape of the margin plank. I simply used some painters tape and placed it on the false deck overlapping already planked bulwarks. Trace the curve where bulwark meets false deck with pencil, peal the tape and that's the outer shape of your margin plank. Instead of placing that tape directly on wood, I placed it on some card stock, cut it out and checked the shape on the model. Once satisfied, I transferred the shape on wood sheet of appropriate thickness and cut it out. It still required some sanding, but the end result was not too bad. Thanks for your interest, you are doing wonderful job on Lady Nelson. Can't wait to see your Cheerful.